/**
 * Copyright 2011 Joe Choi, All rights reserved.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0

 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package tec.data.structure;

import tao.data.structure.Column;
import tao.data.structure.List;
import tao.data.structure.Relation;
import tao.data.structure.Row;
import tao.data.structure.Table;

/**
 * @author Joe Choi
 */
public abstract class AbstractTable<H> implements Table<H> {
	public AbstractTable() {
		data = new ConcreteRelation<H>();
	}
	
	@Override
	public List<Column<H>> getFieldList() {
		return(fieldList);
	}

	@Override
	public List<Row<H>> getRecordList() {
		return(recordList);
	}
	
	protected abstract Column<H> createField();
	protected abstract Row<?> createRecord();
	
	private Relation<H> data;
	private List<Column<H>> fieldList;
	private List<Row<H>> recordList;
}
